Machine for drawing and stamping metal.



H. B. SHERMAN. .mncmms row: DRAWING AND STAMPING METAL. I APPLICATION FILED A'PR. 4, 1914- 1,136,558, Patented Apr. 20, 1915.

s SHEETS-SHEET 1.

THE NORRI= ETERS c0. FHomL/THQ. WASHINGIUN, Dw Cv H. B. SHERMAN. MACHINE FOR DRAWING AND STAMPING METAL.

APPLICATION FILED APR. 4. I914.

Patented Apr. 20, 1915.

3 SHEET8-SHEBT 2.

IIIH'H THE NORRIS PETERS 60.. PHcnx-LITHQ, WASHINGTON, D, c.

HE N.

N A TAMPING METAL.

Fl AP .4. I914.

MACHINE FOR Patented Apr. 20

3 SHEETSSHE UNITE STATES A HOWARD B. SHERMAN, OF BATTLE CREEK, MICHIGAN.

MACHINE FOR DRAWING AND STAMPING METAL.

Specification of Letters Patent.

Patented Apr. so, 1915.

Application filed April 4, 1914. Serial No. 829,661.

To all whom it may concern:

Be it known that I, HOWARD B. SHERMAN, a citizen of the United States, residing at Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Machines for Drawing and Stamping Metal; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention is a novel improvement in machines adapted to perform a plurality of operations upon an. object or blank without manual handling thereof.

The object of the invention is to produce a novel machine having a plurality of mechanisms adapted to successively operate upon objects or blanks, and means for automatically transferring the objects successively from one mechanism to the next.

The specific machine shown in the drawings embodies a double-acting draw press mechanism and a single-acting draw press mechanism arranged preferably side by side in one main frame and preferably with the bed of one mechanism below the bed of the other; and a transferring device or rotary carrier which operates within a slot in the central standard of the machine and receives the objects after being operated upon by one mechanism and transfers them through such slot or standard into position to be acted upon by the other mechanism. This carrier is preferably arranged to operate beneath the die plate or bed of the double acting press and above the die plate or bed of the single-acting press.

I will explain the invention as embodied in the machine illustrated in the accompanying drawings in which Figure 1 is a side elevation of a machine embodying the invention. Fig. 2 is an enlarged transverse sectional view thereof, on the line 22, Fig. 1, looking downward. Fig. 3 is a vertical sectional elevation on line 33, Fig. 2. Fig. 4 is a transverse vertical section on line H, Fig. 2. Fig. 5 is a detail section on line 55, Fig. 2.

As illustrated in the drawings the main frame of the machine comprises a base portion from which rise three standards 1, l 1*, connected at top by members 1 and 1 and at bottom by a bed portion 1 between the standards 1, 1 and a bed portion 1 between the standards 1, 1 Said parts may be formed integral or may be formed separately and rigidly united in any suitable manner. Between the standards 1, 1 is arranged a single-acting press mechanism; and between the standards 1 1 is arranged a double-acting mechanism, these mechanisms being arranged side by side. I will hereinafter refer to such mechanisms as doublepress and single-press, but such terms are merely explanatory, and are intended to include any mechanisms with which the invention could be usefully employed.

As shown the standards 1 and 1- are provided on their opposed faces with guides for a vertically movable cross-head 2 connected by a pitman 2 with a crank 4* on a main crank shaft 4: which extends across and is suitably journaled in the standards 1, 1 1 The cross-head 2 may be pro-vided with a tool or tools of any suitable construction adapted to operate upon an object on the bed 1 in the usual manner.

The bed 1 is preferably located above the bed 1", and above said bed and between the standards 1*, 1 is a vertically movable crosshead 3, which may be operated by means of pitman 3 connected to cranks or eccentrics 1 on the shaft 4; and within said cross-head 3 is preferably arranged a reciprocatory plunger 5 which may be connected by a pitman 5 with a crank P on shaft 1. The aforesaid cross-heads and their operative connections may be of any desired or known construction, and are adapted to operate in such manner that the tool 3 attached to cross-head 3 will operate before the tool 5 attached to the plunger 5. The shaft at may be driven by gears 4 on its ends meshing with pinions 6 on a countershaft 6, which may be provided with fast and loose belt pulleys by which it can be actuated from prime mover, not shown in the usual manner.

In the machine shown the lower portion of the central standard 1* is spread out laterally, as shown at 1, and is slotted transversely intermediate the beds as shown at 1 This slotted portion of the standard is preferably made integral at rear, as indicated at 1 and a horizontal section 1 of the front part of this slotted portion is preferably made removable, as indicated, and is rigidly secured in position by means of a tie-bolt 1 and nuts 1, as shown.

Mounted within the slot 1 and projecting therethrough on both sides of the central standard, is a horizontal rotatable disk 7 which forms a carrier adapted to receive objects operated on by the double-press and carry them into position to be operated upon by the single-press. This carrier may be rotatably supported in the slot 1 in any suitable way, so that it can be rotated within the slot in a horizontal plane. As shown this carrier 7 may be rotatably supported upon a circular boss 8 formed on an extention l of the removable section 1 of the standard 1*, said boss 8 being preferably circular and fitted within a circular flange 7 on the lower side of the carrier 7, which flange and boss will prevent lateral displacement of said carrier during its rotation; and said carrier may be mounted upon this boss by ball bearings 8 as indicated in Fig. 5.

The carrier may be rotated step by step by any suitable means; in the drawings the flange 7 is shown as provided with ratchet teeth 7 on its exterior periphery adapted to be engaged by a reciproeatory ratchet lever 9, which may be yieldingly held in contact -with the ratchet teeth 7 by means of a spring 9; and which may be reciprocated by any suitable means. As shown the outer end of lever 9 is connected by a pivotal joint 9" to one arm of a bell crank lever 9 pivoted at 9 on a bracket attached to the standard 1"; and the other arm of this lever is pivotally connected at 9 to the lower end of a vertical rod 9 the upper end of which may be slotted to pass the shaft 4, and carries a pin 9 engaging a race cam 9*, attached to the shaft 4:, so that during each rotation of shaft 4 the rod 9 will be reciprocated and move the carrier 7 one step. This carrier 7 may be provided with a series of pockets or apertures 7 adapted to successively register with an opening 1 in bed 1, and with an opening 1 in bed 1 and the cross heads are so operated that after a blank (indicated in dotted lines at B) is forced by tool 5 through the die 1 on bed 1 it drops into one of the apertures 7 in the carrier 7, and is retained therein, and ultimately brought by said carrier into position above a die 1 on bed 1 and while in such position the tool 2* will descend and eject the blank from the carrier and force it through the die 1 and discharge it through the opening 1 in bed 1 In a machine such as shown, three distinct operations can be automatically performed on each object passing through the machine; for instance, the die 3 can out a blank from the material; the tool 5 can press said blank through the die 1 and discharge it onto the carrier 7. Said carrier will then carry such blank over bed 1 where it can be engaged by the tool 2 and forced through the die 1 and discharged through the opening 1"". If

the cross-head 2 carries a multiple of tools,

- tion of the carrier, such carrier is adapted to receive work from the first press or mechanism and carry it into position to be operated upon by the other press or mechanism, said carrier thus feeding the blanks from one mechanism to the other.

\Vhat I claim is: 1

1. In combination, a main frame having central and side standards, the central standard having a horizontal transverse slot; adjacent mechanisms arranged between the said standards, a disk carrier mounted in the slot in the central standard and adapted to receive objects operated upon by one mechanism and carry same into position to be operated upon by the other mechanism, and means for operating said carrier. 7

2. In combination, a main frame having central and side standards, the central standard having a horizontal transverse slot; and a removable section; adjacent press mechanisms arranged between the said standards, and a carrier mounted in the slot in the central standard and adapted to re ceive an object operated upon by one press mechanism and carry it over into position to be operated upon by the other press mechanism, and means for operating said carrier. 3. A drawing press comprising a main frame having central and side standards, the central standard or upright having'a horizontal transverse slot;die supporting beds between the standards, and reeipro'catory cross heads arranged between the standards above the beds; with a carrier mounted to rotate in the slot in the central standard and adapted to carry an object discharged from the press into position to be operated upon by the other press, and means for rotating this carrier step by step.

4:. A. drawing press comprising a main frame having central and side standards, the 7 5. In combination, a main frame having central and side standards and beds, the central standard having a transverse horizontal'slot near its base with a carrier rotatably mounted in said slot and adapted to receive objects from one bed and carry same through the slot in the standard into position to be operated upon over the other bed said beds being on opposite sides of the central standard, and means for operating said carrier.

6. In combination, a main frame having central and side standards, and press beds and plungers intermediate the standards, the central standard having a transverse horizontal slot in it adjacent the press mechanisms arranged between the said standards over the slot; with a carrier arranged Within and extending through the slot in said central standard and lying below the bed of one press and above the bed of the other and adapted to receive objects operated upon by one press mechanism and carry same over into position to be operated upon by the other press mechanism, and means for operating said carrier.

7 In combination, a main frame having central and side standards and adjacent press mechanisms arranged between the said standards, the central standard having a horizontal transverse slot; with a carrier arranged below the bed of one press mechanism and above the bed of the other and mounted in the slot in the central standard, said carrier being adapted to receive an object operated upon by one press mechanism and carry it through the slot into position to be operated upon by the other press mechanism, and means for operating said carrier.

8,. A drawing press comprising a main frame having central and side standards, and die supporting beds between the standards, the central standard being widened adjacent the beds and having a longitudinal slot in said widened portion intermediate the beds; with reciprocatory cross heads arranged between the standards, an annular carrier mounted to rotate within the said slot in the central standard and adapted to carry an object discharged from one press through the slot into position to be operated upon by the other press, and means for rotating this carrier step by step.

9. A drawing press comprising a main frame having central and side standards, the central standard being widened adjacent the beds and having a longitudinal slot in said widened portion intermediate the beds, and die supporting beds between the standards; with reciprocatory cross heads arranged between the standards, an annular carrier mounted to rotate in the said slot below the bed of one press and above the bed of the other press and adapted to carry an object discharged from one press into position to be operated upon by the other press, and means for rotating this carrier step by step.

In testimony that I claim the foregoing as my own, I aflix my signature in presence of two Witnesses.

HOI/VARD B. SHERMAN.

Witnesses:

W. VVALLAOE NAIRN, Jr., L. E. WITHAM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

